Simon sez, "David Cox at the UK National Physical Laboratory has created this snowman, which is ~20µm high."
The snowman was made from two tin beads used to calibrate electron microscope astigmatism. The eyes and smile were milled using a focused ion beam, and the nose, which is under 1 µm wide (or 0.001 mm), is ion beam deposited platinum.
A nanomanipulation system was used to assemble the parts 'by hand' and platinum deposition was used to weld all elements together. The snowman is mounted on a silicon cantilever from an atomic force microscope whose sharp tip 'feels' surfaces creating topographic surveys at almost atomic scales.
Christmas 2009 : Educate + Explore : National Physical Laboratory
More than 125 of these curious soccer ball-sized glass spheres hang near the floor of the Mediterranean Sea. Even though they’re deep underwater, they’re keeping a constant vigil for neutrinos, particles that may be evidence of dark matter, supernovae, and neutron stars far off in intergalactic space. Eventually, the Cubic Kilometer Neutrino Telescope (KM3NeT) will […]
A key challenge in building colonies on the moon is that it’s incredibly expensive to transport construction materials to space from Earth. That’s why researchers are exploring how moon bases could be mostly constructed from raw materials already there. A team of scientists working with the European Space Agency (ESA) are exploring how urine could […]
The new Mars rover Perseverance, set to launch in July for a February 2021 landing, will be outfitted with its own small helicopter. NASA engineers at Kennedy Space Station recently put the chopper through its paces, marking the last time they’ll spin it up before landing on the red planet. From Kennedy Space Center: The […]
If you’re charting the fortunes of a business, one glance at the right columns can instantly detail that company’s health. If you want to see their current roster of customers, a spreadsheet can bring those clients into sharp focus. Make no mistake — the world of business is still dominated by the all-powerful spreadsheet. It’s […]
For wine lovers around the world, it’s all about discovery. Once they get a taste for the grape, oenophiles are rarely satisfied with even the most carefully curated, go-to vintages. There’s always a hunt for the next great pairing, the thrill of uncorking a bold new Tempranillo or sublime Moscato. That feeling is a jones […]
These toys and games can keep the kids busy while you’re all trapped inside. As rough as all this time cooped up inside the house is on us adults, it’s even worse for kids. All that borderline maniacal energy along with an unquenchable thirst for stimulation and attention make home sequestration like a life sentence […]